Something about a hardcore plane stealing a plane and non-hardcore planes are tasked with bringing down said hardcore plane.
You can have 4 weapons that can be used in the cardinal directions, with some weapons can only be used in certain directions (like Anvil going down). It can get a bit hectic. Hitbox is kinda iffy, where enemies colliding will reduce your health by alot. The game does give you a couple of lives...if you can get to the item in time.
This longplay no-skills through the game while trying to use as many weapons as possible.